File:Sulfur Dioxide Plume from Mt Etna Eruption 2002 (8261811561).jpg
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English: Mt. Etna, a volcano on the island of Sicily, erupted on October 26, 2002. Preliminary analysis of data taken by the Atmospheric Infrared Sounder (AIRS) on NASA's Aqua satellite on October 28 shows the instrument can provide an excellent means to study the evolution and structure of the sulfur dioxide plume emitted from volcanoes. These data also demonstrate that AIRS can be used to obtain the total mass of sulfur dioxide injected into the atmosphere during a volcanic event, information that may help us to better understand these dangerous natural occurrences in the future.
The image clearly shows the sulfur dioxide plume. This image was created by comparing data taken at two different frequencies, or channels, and creating one image that highlights the differences between these two channels. Both channels are sensitive to water vapor, but one of the channels is also sensitive to sulfur dioxide. By subtracting out the common water vapor signal in both channels, the sulfur dioxide feature remains and shows up as an enhancement in the difference image. ______________________________________________________________________ About AIRS The Atmospheric Infrared Sounder, AIRS, in conjunction with the Advanced Microwave Sounding Unit, AMSU, sense emitted infrared and microwave radiation from the Earth to provide a three-dimensional look at Earth's weather and climate. Working in tandem, the two instruments make simultaneous observations all the way down to the Earth's surface, even in the presence of heavy clouds. With more than 2,000 channels sensing different regions of the atmosphere, the system creates a global, 3-dimensional map of atmospheric temperature and humidity, cloud amounts and heights, greenhouse gas concentrations, and many other atmospheric phenomena. The AIRS and AMSU fly onboard NASA's Aqua spacecraft and are managed by the Jet Propulsion Laboratory, Pasadena, California, under contract to NASA. JPL is a division of the California Institute of Technology in Pasadena. Credit NASA/JPL AIRS Project Download the image Various sizes of the image are available, and there are two ways to download: 1) Right-click on the image. Click on a size next to "View all sizes". 2) Click on the "Actions" menu located above the image. Select "View all sizes". Resources Atmospheric Infrared Sounder web site › How to get the AIRS data Data Products › Data Portals › Documentation › |
| Date | Taken on 10 December 2012, 15:19:37 |
| Source | Sulfur Dioxide Plume from Mt. Etna Eruption 2002 |
| Author | Atmospheric Infrared Sounder |
| Flickr set | Sulfur Dioxide |
| Flickr tags | atmosphericinfraredsounder; nasa; airs; jpl; volcano; sulfurdioxide; etna |
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This image was originally posted to Flickr by Atmospheric Infrared Sounder at https://flickr.com/photos/90896682@N06/8261811561. It was reviewed on 25 September 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| current | 00:51, 25 September 2023 | | 1,980 × 1,524 (1.33 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://live.staticflickr.com/8207/8261811561_ebed276174_o.jpg via Commons:Spacemedia |
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